Technical Methods of Ore Analysis
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which will give a precipitate of sulphur with ferric salts.
Ii8 TECHNICAL METHODS OF ORE ANALYSIS.
water and continue the boiling until all odor of sulphur dioxide has disappeared. Now place the flask in cold water and add cold water until the flask is nearly full. When the solution is quite cold, transfer it to a battery- jar, dilute to 700 cc, and titrate with permanganate as usual (136).
150. Chrome-iron Ore. — Treat as described in 102. After filtering off the chromium the iron is left with... the residue on the filter as ferric hydroxide. With as little hot water as possible rinse the residue from the filter into a small beaker. Place the latter under the funnel and dissolve \vhatever precipitate still adheres to the filter by slowly pouring through the latter a warm mixture of 10 cc. strong hydrochloric acid and 15 cc. water.
Heat the mixture in the beaker to dissolve all the ferric hydroxide and then transfer to a 6-oz. flask, reduce with zinc, and determine the iron according to 142, 151.
What to read after Technical Methods of Ore Analysis?
You can find similar books in the "Read Also" column, or choose other free books by Albert Howard Low to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
which will give a precipitate of sulphur with ferric salts.
Ii8 TECHNICAL METHODS OF ORE ANALYSIS.
water and continue the boiling until all odor of sulphur dioxide has disappeared. Now place the flask in cold water and add cold water until the flask is nearly full. When the solution is quite cold, transfer it to a battery- jar, dilute to 700 cc, and titrate with permanganate as usual (136).
150. Chrome-iron Ore. — Treat as described in 102. After filtering off the chromium the iron is left with... the residue on the filter as ferric hydroxide. With as little hot water as possible rinse the residue from the filter into a small beaker. Place the latter under the funnel and dissolve \vhatever precipitate still adheres to the filter by slowly pouring through the latter a warm mixture of 10 cc. strong hydrochloric acid and 15 cc. water.
Heat the mixture in the beaker to dissolve all the ferric hydroxide and then transfer to a 6-oz. flask, reduce with zinc, and determine the iron according to 142, 151.
What to read after Technical Methods of Ore Analysis?
You can find similar books in the "Read Also" column, or choose other free books by Albert Howard Low to read onlineMoreLess
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